Widehall, also known as Water Lot #16, is a historic home in Chestertown, Kent County, Maryland. It is a large, 2 1⁄2-story, mid-Georgian, brick dwelling house built in 1769 by Thomas Smyth. It later was the home of Robert Wright, Governor of Maryland between 1806 and 1809; and of Ezekiel F. Chambers, State and United States Senator and Judge of the Court of Appeals.

It was listed on the National Register of Historic Places in 1972, and it is a contributing property in the Chestertown Historic District.